Ensure /tmp is tmpfs or a separate partition

MediaNivel 1Automatizadalinux

Descripción

The /tmp directory is a world-writable directory used for temporary storage by all users and some applications. Note: If an entry for /tmp exists in /etc/fstab it will take precedence over entries in a systemd unit file. There is an exception to this when a system is diskless and connected to iSCSI, entries in /etc/fstab may not take precedence over a systemd unit file.

Cómo se verifica

Método de auditoría: Comando de shell

shell

if findmnt -kn /tmp >/dev/null 2>&1; then echo compliant; else echo /tmp' is not a separate partition'; fi

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

First ensure that systemd is correctly configured to ensure that /tmp will be mounted at boot time. # systemctl unmask tmp.mount For specific configuration requirements of the /tmp mount for your environment, modify /etc/fstab. Example of using tmpfs with specific mount options: tmpfs /tmp tmpfs defaults,rw,nosuid,nodev,noexec,relatime,size=2G 0 0 Note: the size=2G is an example of setting a specific size for tmpfs. Example of using a volume or disk with specific mount options. The source location of the volume or disk will vary depending on your environment: <device> /tmp <fstype> defaults,nodev,nosuid,noexec 0 0

Propiedades

Sistemas operativos: almalinux-8
Etiquetas: cis-convertedfilesystemlinux
Referencia: CIS AlmaLinux OS 8 Benchmark v4.0.0 - 1.1.2.1.1

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target linux